Hoca QMB139 High Performance Intake Manifold 50cc 4-stroke Maddog

Hoca Performance Intake Manifold for 50cc 4-stroke QMB139 engines.   Bolt Hole Spacing: 44.5mm 2 Vacuum Ports   Inner Diameter (engine side): 24mm Inner Diameter (carburetor side): 34mm    QMB139 50cc/49cc